Hi Mark,

Yes the .82 is a good motor for either the Katana or the Fusion. The .82 doesn't really weigh much more than the average .50 2-stroke and produces a bit more power. Good choice of motor for ultimate performance. We use the .82 in a OMP Yak here and it's a great combo! Standard servos will do the trick in these birds! No worries there.

Any profile will take the throne as an everyday trash around plane!!! It's what their known for because of their function over form nature. Their easy to maintain and usually stronger than the average fatty. And of course profiles are still the only .40 size models that'll truly 3D (Well I have yet to see another .40 size fatty do the book). And be good at it!

The choice between the Fusion and the Katana is a coin toss. The Katana is a bit more fun flyish than the Fusion so it'll float more and probably 3D a little easier at the cost of precision. The Fusion on the other hand will fly a straight line much better at the cost of 3D ease. In the end their both awesome birds and great choices! You need to decide what you want from the bird? A fun fly trash around? Or a bit more precision and 3D monster?

Good luck with it!
Cheers
Spacey